- 업종: Earth science
- Number of terms: 26251
- Number of blossaries: 0
- Company Profile:
An international scientific society that fosters the transfer of knowledge and practices to sustain global soils. Based in Madison, WI, and founded in 1936, SSSA is the professional home for 6,000+ members dedicated to advancing the field of soil science. It provides information about soils in ...
An iron-containing, red pigment(s) produced in root nodules during the symbiotic association between Bradyrhizobium or Rhizobium and legumes. The pigment resembles but is not identical to mammalian hemoglobin.
Industry:Earth science
A type of stream terrace, formed as an erosional surface cut on bedrock and thinly mantled with stream deposits (alluvium).
Industry:Earth science
A variation of episaturation associated with controlled flooding, which causes reduction in a soil layer and oxidation of mobilized iron and manganese in a lower unsaturated subsoil.
Industry:Earth science
A vertical section of the soil through all its horizons and extending into the C horizon.
Industry:Earth science
Small diameter tube (typically about 50 millimeters) inserted through the soil root zone to provide passage of a neutron probe to determine the water content of soil at various depths.
Industry:Earth science
Similar to a lithic contact except that it is softer, can be dug with difficulty with a spade, if a single mineral has a hardness <3 (Mohs scale), and gravel size chunks will partially disperse within 15 hours shaking in water or sodium hexametaphosphate solution.
Industry:Earth science
Sedimentary peat consisting mainly of plant and animal residues precipitated from standing water.
Industry:Earth science
Microorganism that grows best under alkaline soil conditions (up to pH 10. 5).
Industry:Earth science
Energy due to motion and is proportional to the velocity squared.
Industry:Earth science
